Temporary binder.



No. 683,0I9. Patented sept'. 24, 190|. R. J. BUCHANAN.

TEMPORARY BINDER. (Application led Jan. 8, 1901.) (No Model.)

UNITED STATES PATENT GEEICE.

ROBERT J. BUCHANAN, OF PITTSBURG, PENNSYLVANIA.

TEMPORARY BINDER.

SPEGIFICATIUN forming part of Letters Patent N o. 683,019, datedSeptember 24,

Application filed January 8. 1901. Serial No. 42.4.84. (No model.)

To ttZZ whom it may concern.:

Be it known that l, ROBERT J. BUCHANAN, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful' Improvements inTemporary Binders, of which the following is a specification.

The object of my invention is to providea temporary binder for loosesheets of paper, such as ruled sheets, adapted for the entry ofmemoranda or records of business transactions.

In carrying out my invention I provide a cover comprising two iat piecesconnected by a flexible back. Within the iiexible back I secure twostrips. to which I apply improved locking devices. Impaling-pins ofimproved construction are carried within the cover and are adapted toreceive loose sheets of paper which are perforated or provided witheyelet-holes adapted to pass over the pins.

In the accompanying drawings, Figure 1 is a plan view of the inside of abook-cover or temporary binder with myimprovemen-ts applied. Fig. 2shows a transverse section therethrough on the line 2 2 of Fig. 1 withthe cover partly closed; and Fig. 3 is a detail view in section, showingparticularly the locking devices employed.

The cover consists of two stiff boards A B, connected bya iiexible backC. The boardsA B are hinged to the back at a b, and the back is providedwith strips D E, to which the locking devices are attached. The strip Dis recessed at CZ, and within this recess is arranged a sliding bolt e.This is made iiat and slotted at e. Through the slot extend guide-screwse2, which hold the bolt against the inner wall of the recess, but'permitit to slide eudwise. At its inner end the bolt is provided with aguide-spindle f, which enters a guide-socket g. Aspring h moves the boltoutward toward the bottom of the book, while the bolt may be movedinward against the force of the spring by a handle c'. Alaterally-projecting tooth j is attached to the bolt, and this isadapted to engage devices on the strip E. The strip Eis provided with arecess on, upon which is secured a slotted plate m. The toothy isadapted to enter the slot and to engage with the plate at the lower endof the slot at the point m2. Preferably the tooth is inclined, so thatthe act of clos ing the stripsD E by their handle causes the lower endm2 of the slotted plate to bear against the inclined end of the toothjand cause the bolt to slide in such manner and sufficiently to enablethe tooth to enter the slot and permit its locking end j' to enterbeyond the plate fm'. strips are locked together. By pushing in thehandle t' the strips may be unlocked and swung back, as indicated inFig. 2. The strips D E carry curved impaling-pins J J', adapted to passthrough perforations in the inner edges ofthe sheet-s F. When the coveris thrown open and the strips D E are in the position shown in Fig. 2,the sheets may be placed upon the impaling-pins.

Whenthe book is closed and the strips D and E are brought together, theyare locked by the devices hereinbefore described. After that the bookmay be opened and closed With'- out separating the sheets, as after thelocking devices are applied the covers are opened and closed along thelines of the flexible connections d and b. The impaling-pins arepreferably of the form shown, the pins J being solid and the pins Jhollow. They are of substantially the same length, and the pins J fitinto the pins J, as shown in Fig. 3.

I claim as my inventionl. The combination of the strips, D and E, theslotted plate secured to one of the strips, the sliding bolt arranged ina recess in the other strip and having a slotted portion through whichguide'screws extend, a guidespindle,a spring for moving the bolt in onedirection, a handle for moving it in the opposite direction, and a toothentering the slotted plate, substantially as described.

2. The combination of the stiff cover members, A, B, the strips, D andE, the flexible back, O, to which the strips are attached, the hingedportions, a, b, between the parts, A, B, and the back C, hollowy curvedimpalin g-pins on one of the strips, solid curved By this means the twoimpaling-pins on the other strip fitting into the hollow pins, theslotted plate secured to one of the strips, the sliding plate arrangedin a recess in the other strip, and having a slotted portion throughwhich guide-screws extend, a guide-spindle, a spring for moving theplate in one direction, a handle for moving it in the oppositedirection, and a tooth entering the slotted plate, substantially asdescribed. io

In testimony whereof I have hereunto suhseriloed my name.

ROBERT J. BUCHANAN.

Witnesses:

C. L. PETERSON, HORACE H. MANN.

